I liked the developer experience right off the bat -- the way the data structures are modeled couldn't be more elegant. However, this put a crimp in my enthusi

I liked the developer experience right off the bat -- the way the data structures are modeled couldn't be more elegant. However, this put a crimp in my enthusiasm: "[Alan] defines all possible states of the data, and in effect all possible states of your application" We recently finished refactoring a complex algorithm that got away from us because we coded it as a state machine rather than a plain vanilla algorithm using good old sequence + iteration + selection. The state machine version may have been easier to write, but the old fashioned algorithm was so much easier to reason about and maintain.